User guide

OMNIScanner User Guide

7 - 4

Method C

For Method C three launch cables and two connectors are used to set the

reference. All of the launch cables and connectors are canceled. Use this

method when measuring an end to end system where the patch cables need

to be included in the total loss measurement.

1. Connect the first Launch Cable to the fiber adapter that is attached to

OMNI

Scanner

. The black fiber attaches to the TX (transmitter) side and the

white fiber to the RX (receiver) side.

2. Connect the second Launch Cable to the fiber adapter that is attached to

OMNI

Remote

. The black fiber attaches to the RX (receiver) side and the

white fiber to the TX (transmitter) side.

3. Use two Couplers to connect the two black fiber ends with the third

black Launch Cable.

4. Use two Couplers to connect the two white fiber ends with the third

white Launch Cable.

5. Set the Reference.

6. Disconnect the third Launch Cable, located in the center, without disturb-

ing any connections to the couplers or adapters.

Setting the Reference in Loopback Mode

If a single cable needs to be measured, the reference value is set with one

launch cable.

1. Connect the launch cable to the fiber adapter that is attached to OMNI-

Scanner.

The black fiber attached to the TX (transmit) connector and the

white fiber to the RX (receive) connector.

2. Use a coupler to connect the launch cables on the other end.

3. Set the Reference.

850 nm

1300/1310 nm

850 nm

1300/1310 nm

2 m Launch Cable

Couplers

2 m Launch Cable 2 m Launch Cable

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